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The following well-known nebulae are listed for the purpose of comparison. Orion Nebula: 20 ly (6.132 pc) [48] Diffuse Nebula: The closest major star formation region to Earth. [49] Crab Nebula: 11 ly (3.4 pc) [50] Supernova remnant: The remnant of a supernova that occurred in 1054 AD. [51] Bubble Nebula: 6 [52]-10 [53] [54] ly (1.84-3.066 pc ...
The Helix Nebula (also known as NGC 7293 or Caldwell 63) is a planetary nebula (PN) located in the constellation Aquarius. Discovered by Karl Ludwig Harding, most likely before 1824, this object is one of the closest of all the bright planetary nebulae to Earth. [3] The distance, measured by the Gaia mission, is 655±13 light-years. [4]
Glowing Eye Nebula or Dandelion Puffball Nebula: NGC 6751: 1863 6.5 11.9 Aquila: Turtle Nebula: NGC 6210: 1825 4.7 9.3 Hercules: Bow-Tie Nebula: NGC 40: Caldwell 2 ...
Oculudentavis is an extinct genus of lizard of uncertain taxonomic placement, [1] originally identified as an avialan dinosaur (bird, in the broad sense). [2] It contains two known species, O. khaungraae and O. naga.
Several analyses of bird fossils show divergence of species prior to the K–Pg boundary, and that duck, chicken, and ratite bird relatives coexisted with non-avian dinosaurs. [142] Large collections of bird fossils representing a range of different species provide definitive evidence for the persistence of archaic birds to within 300,000 years ...
Researchers unearthed the skull of a previously unknown starling-sized bird species named Navaornis hestiae that was so well preserved they were able to digitally reconstruct its brain and inner ...
The genus name Nebulasaurus, means "misty cloud lizard", and is derived from the Latin word nebulae meaning "misty cloud", a reference to "Yunnan" which means "southern misty cloudy province" and the Greek word "sauros" (σαυρος) meaning "lizard" [2] The specific name ‘’taito’’, was given in honor of Japanese company Taito, which funded the field project and is geographically near ...
Oval eye sockets of these predators could have evolved to help the skull absorb impact as they pounced on prey, the study suggests. Dinosaurs evolved different eye socket shapes to allow stronger ...